3560 QOS bug?

Has anyone seen a bug where a 3560 with a QOS config will
remove the EF
DSCP tagging on a packet as it traverses the switch?
I have a packet capture where a packet came in marked on a
Fast E port
and when it comes into the upstream 4500 it is not marked EF
anymore...

Thoughts?

Thanks,
Jim

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If you're trusting COS on the 3560... what does your
COS to DSCP map look like? You may need to set it to
dscp 46, it's set to 40 by default if i remember
correctly

--- Jim McBurnett <jimtgasolutions.com> wrote:

> 
> 
> 
> Has anyone seen a bug where a 3560 with a QOS config
> will remove the EF
> DSCP tagging on a packet as it traverses the switch?
> I have a packet capture where a packet came in
> marked on a Fast E port
> and when it comes into the upstream 4500 it is not
> marked EF anymore...
> 
> Thoughts?
> 
> Thanks,
> Jim
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voippuck.nether.net
> h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
> 


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Also check your trunk to the 4500 and make sure your
trusting DSCP... sorry to state the obvious.

--- Jim McBurnett <jimtgasolutions.com> wrote:

> 
> 
> 
> Has anyone seen a bug where a 3560 with a QOS config
> will remove the EF
> DSCP tagging on a packet as it traverses the switch?
> I have a packet capture where a packet came in
> marked on a Fast E port
> and when it comes into the upstream 4500 it is not
> marked EF anymore...
> 
> Thoughts?
> 
> Thanks,
> Jim
> 
> _______________________________________________
> cisco-voip mailing list
> cisco-voippuck.nether.net
> h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
> 


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